Best Online Slots UK

Online slots come in many different themes and formats - and they boast a range of innovative features that are constantly improving. Here at Pink Casino, it's our passion to bring our players the best of the best online slots. It's why we release between 12-15 new online slots per month, but only after our specialist team at Pink HQ have spun the reels and given them our quality stamp of approval.

We work with a selection of different developers that each create their own online games and slot machines for the industry. We'll explain a little bit about each developer later on.

In this article, we're going to explain why we think Pink Casino has the best online slots & online casino games - and why we think you'll love playing these top-rated titles. Before we delve in too deep, we wanted to show you some of the biggest and best games that are on offer at the minute - and we’ll keep this updated to ensure you’re always seeing the top online slots in the UK:

What is the Best Online Slot Game?

Particularly for players that are new to playing online slots it can be difficult to know which game to play given that there are literally hundreds of them on offer here at Pink Casino. To help narrow down your search, whether you’re a new Pink Player or a seasoned one, we’ve come up with a list of some of the best, most popular, and top-rated online slots on offer. This isn't a comprehensive list, however, and there are plenty more to choose from - but this makes for a great starting point:

Rainbow Riches

One of the best online slots in the UK, Rainbow Riches is an Irish-themed slot game created by Barcrest. It's got 5 reels and 3 rows with 20 paylines, coming complete with an engaging theme and plenty of animations - not to mention that incredible jackpot prize! Land the golden leprechaun on the reels 5 times or more and you'll instantly get a 500 coins jackpot.

The Rainbow Riches slot was so incredibly popular with casino fans that it spawned a hugely successful series of top rated slots - so there is more than just the original game for players to spin through if they like their slots green, Irish, and packed full of potential rainbow-imbued payouts! This is another of the top rated online slots available at Pink Casino that has had a longstanding position as one of our most popular slots since it originally launched on our website!

Some of the features that we think are of particular interest to our players include the generous offering of bonus features - including pick-me bonuses, multipliers of up to 500x, and Wilds that can help contribute to winning paylines. The game is also topped off with a quirky leprechaun mascot that will appear at times on the reels to trigger one of the aforementioned bonuses!

The symbols all tie in with the Irish theme nicely with the top-paying being the golden coin which also serves as the Wild. The other symbols sitting at the top end of the paytable are all game-exclusive images that have the biggest payout potential whereas the low-value symbols are a little more generic but have a great Celtic twist in their style.

Play Rainbow Riches


Another top rated online slot that you might have heard of while playing in our online casino is the spacefaring Starburst slot. Gems fly across the reels for the chance to create some dazzling payouts with a simplistic gameplay format that is ideal for those players that aren’t interested in overly complex feature-filled slot games. If you would rather a slot with base game that is unique and diverse with plenty of potential for prizes on its own, Starburst is an excellent title to choose. Incredible cosmic wins could result from a successful combination of matching symbols on one of the 10 paylines on offer!

This quality video slot is powered by NetEnt and boasts a fairly traditional 5 reels and 10 paylines. It's been one of the biggest and most popular online slots for years and it's not hard to see why. There's a fantastic 'win both ways' engine that means players can land winning combinations from both sides of the reels. There's also the Starburst wild feature, as well as expanding wilds, which both help with adding a bit more variety to your gameplay.

Play Starburst


Another recognisable title is Cleopatra slot, an Egyptian-themed game created by IGT. This was one of the first slots that appeared in the Vegas casino floors and it's still very popular today. It's a 5 reels 20 payline online slot game. Triggering the Cleopatra bonus will activate Free Spins automatically and there are 15 extra Free Spins to be caught. Five Cleopatra symbols will land to reap the maximum reward.

Play Cleopatra

Book of Dead

Another Egyptian slot called Book of Dead, which was made famous in land-based casinos, is also available at Pink Casino. It combines a traditional appearance with some very modern potential payouts which have both contributed to putting Book of Dead firmly at the top of our list of top rated online slots. This game is so well-loved that it even features as one of the top Vegas slots, so its popularity is international - a great indicator that the game is high-quality!

So, what can you look forward to when you play the top rated Book of Dead online slot? Well, first and foremost, we think that the free spins casino bonus is one of the biggest draws of this game - by landing 3 Scatters or more on the reels in a single spin you’ll be awarded a fantastic 10 free rounds of gameplay to spin through. These spins are valued at the bet that triggered the feature - so it’s equal to the value of your previous spins!

The graphics are also a big plus for the players that like the traditional aesthetic that can be found at a land-based casino - plus, with up to a generous 5,000x your stake available to win this is more than just a delight to look at.

Play Book of Dead

Razor Shark

Modern graphics and an eerie subaqueous setting form the first impressions for the Razor Shark slot, designed to combine high payout power with immersive gameplay that is completely user-friendly. There are no convoluted bonuses to speak of in this title - only powerful bonus rounds that could award incredible prizes. Wins can reach heights of 2,500x on this set of undersea reels - just watch out for the predators that can smell a win a mile off…

Play Razor Shark

How to Play Best Online Slots For Free

While the nature of slots is to stake money for the chance to win money back, there are ways in which you can play free online slots - be that to learn how to play or to see if the game is to your liking. If you’re in search of free slots then we’ve got a great overview of how you can find them, what exactly ‘free’ means in this context, and where you can play them.

What are free online slots?: We’ll start with this question because it lends itself nicely to some of the other frequently asked questions about free slot games. Free online slots are games that don’t cost a penny to play as you can play them in the form of a casino bonus.

What are free slot bonuses?: This is a bit of a more complicated question as the specifics of bonuses are entirely dependent on the terms and conditions associated with the promotion - and these are made by the casino. If you see an online casino promoting a free slots-related bonus then always read the small print to find out what is involved (for example, do you receive a certain number of free spins? Do you receive bonus funds that can be used on slots?).

Who are the Best Online Slots Providers?

Here at Pink Casino, we work with talented and innovative game providers to make our collection of the best online slots vast. Below is an explanation of our treasured providers and some of their best online slots to date. Some of our players may prefer to pick their games by provider.

Red Tiger

Artists, mathematicians, theorists and developers all under one roof leads to quality games like Dragon's Luck and Rainbow Jackpots. Red Tiger Gaming was established in 2014 and has won multiple awards and created some brilliant bonus-rich and themed games. With online slots and gaming evolving, Red Tiger have taken a modern approach to creating games and have put a lot of amazing graphics on the front end - all Red Tiger graphics are visually stunning.


IGT has a bank of quality online slots, such as Da Vinci Diamonds. This gaming giant is listed on the stock exchange and is home to some of the best online slots around today. It's IGT's world-famous Cleopatra slot series that really got them attention a while ago, it was released on land-based casinos and since then the game and IGT have got from strength to strength. They have also dabbled in megaways slots too and are considered a major slot provider.

Play'n Go

Play 'n' Go creates simple yet creative online slots that are focused on high variance and can be very volatile. This means players can win large sums of cash in just one spin. Like all providers, they produce excellent new slots every month on their 5x5 and 7x7 reel engine.

Which Online Slots Have the Best Payouts?


Since the launch of the Megaways mechanic, the casino games industry has never been the same. Megaways slots are played over 5 or 6 reels with a number of symbols on each reel changing, so the number of ways to win also changes with each spin. Megaways games offer up to 586,971 different winning ways, plus the games continue to expand in popularity and therefore innovation and bonus features.

Free Spins

In-game Free Spins are a casino bonus that most online slots players look out for when choosing a slot game. It's a feature that usually requires Scatters or Wilds to land on the reels a certain number of times to trigger it. Rainbow Riches Free Spins is a popular slot, which has the iconic Free Spins feature. All Free Spins won are played on an alternative set of reels and they can also be retriggered when finding more bonus symbols. Most online slots will have a Free Spins round.

The Best Online Slots Themes

Egyptian-Themed Slots

While Cleopatra and Book of Dead are two of our most famous Egyptian slots we’ve got so many ancient-themed slot games that it’s hard to pick out our absolute favourites. Whether you’re looking for a game that will have you excavating Free Spins, something that is packed full of potential ways to win, or a slot with more bonus rounds than you could shake a stick at - Egyptian slots have a huge range of features to ensure that all players have something to look forward to.

Popular Culture

We’ve got some familiar faces at Pink Casino that will be instantly recognisable to many of our players. Remember the hilarious MTV show featuring the most ridiculous duo who commented on and critiqued music releases on their sofa? Well, we’ve got them right here! You can spin through the TV reels of the Beavis and Butthead slot for the chance to trigger one of the many unique bonus features set in different locations from the TV series. Also on offer is the Narcos slot from NetEnt, set on the streets of Medellin overrun by a cartel - this is based on the famous Netflix series of the same name and is complete with recognisable characters who could contribute to cash prizes!

Irish-Themed Slots

Irish slots make up one of the most popular slot themes in the online casino landscape with gorgeous viridescent slots packed full of Irish-themed symbols for players to land along a payline in return for a payout! Slots O Gold is one of the top Irish slots on offer here at Pink Casino - discover the cash prizes that could appear at the end of the rainbow if you find enough identical symbols in the correct positions. The Golden Leprechaun slot game glistens and gleams as each spin of the reels offers the potential to reward you with up to 1,000x your stake - and look out for the fantastic Horse Racing Bonus!

Pink Casino’s Best Online Slots

We have some of the best online slots right here, spanning many genres, features, and gaming providers to offer our players as much choice as we possibly can - and we’re extremely proud of the games available.

Don’t forget that, while our online slots are plentiful, we also have a fantastic range of online bingo games on offer for those of you looking for a community-centric casino game that could result in brilliant prizes - including Free Spins to use in Starburst!